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Finding the Fourth Proportional to 701,983.94, 968,655.92 and 396,065.16

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Solution

The fourth proportional to 701,983.94, 968,655.92 and 396,065.16 is: 546,523.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,983.94 : 968,655.92 = 396,065.16 : x
  2. Step 2: Convert to fraction form
    701,983.94/968,655.92 = 396,065.16/x
  3. Step 3: Cross multiply
    701,983.94x = 968,655.92 × 396,065.16
  4. Step 4: Simplify right side
    701,983.94x = 383,650,859,959.42
  5. Step 5: Solve for x
    x = 383,650,859,959.42/701,983.94
  6. Step 6: Final answer
    x = 546,523.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.